Well-drilling mechanism.



No. 784,571. PATEN'TED MAR. 14, 1905. J. G. KNUPP &: J. G. GREENE.

WELL DRILLING MECHANISM.

APPLICATION FILED JAN. 12, 1904.

2 SHEETS-SHEET 1.

Wifges No. 784,571. PATENTED MAR. 14, 1905. J. G. KNUPP & J. G. GREENE.

WELL DRILLING MECHANISM APPLIOATION FILED JAN.12, 1904.

' ZSHBETS-SHEBT z.

UNITED STATES Patented March 14, 1905.

PATENT OFFICE.

JACOB G. KNUPP AND JAMES G. GREENE, OF WVARREN, PENNSYLVANIA.

WELL-DRILLING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 784,571, dated March14, 1905.

Application filed January 12, 1904. Serial No. 188,712.

To all whmn it may OOH/0877b.

Be it known that we, JACOB C. KNUPP and J AMEs Gr. GREENE, citizens ofthe United States, residing at WVarren, in the county of \Varren andState of Pennsylvania, have invented a new and useful ell-DrillingMechanism, of which the following is a specification.

This invention relates to well-drilling mechanism; and the principalobject thereof is to provide an improved form of well-drilling mechanismcharacterized by great strength, but so constructed as to be readilyportable and have comparatively little weight.

A further object of the invention is to provide improved means foradjusting the sandreel shaft to enable the driller to apply power forraising the bucket or to brake the sandreel when lowering the bucket.

In accomplishing the objects above mentioned and others which willappear as the invention is more fully disclosed I preferably employ thenovel construction, combination, and arrangement of parts of awell-drilling mechanism hereinafter described, illustrated in thepreferred form in the accompanying drawings, and having the novelfeatures thereof clearly pointed out in the appended claim.

In the drawings, Figure 1 is a view in perspective of the completeapparatus, part being broken away at one end to save space. Fig. 2 is aview in perspective of the apparatus, showing the opposite side thereoffrom that shown in Fig. 1. Fig. 3 is a detail view in perspective,showing the portion of the apparatus broken away in Fig. 2. Fig. 4 is adetail view in perspective, showing the sand-reel shaft and the mode ofsupporting it. Fig. 5 is a view in side elevation of the walkingbeam.Fig. 6 is a plan view of the walkingbeam.

Referring to the drawings, in which corresponding parts are designatedbysimilar characters of reference throughout, 1 1 designate thederrick-standards, which converge as they rise and are connected bysuitable oblique and transverse braces in the usual manner. The

standards 1 1 rise from a base (designated generally as B) composed oflongitudinal members 2 2, mounted on blocks, and transverse members 3,rigidly secured to the longitudinal members. Oblique braces 4 rise fromthe corners of the base B and are securely clamped at their upper endsto the derrickstandards, as shown. The braces 4 are connected bytransverse members intermediate of their ends, and other means forstrengthening said braces may be employed, if desired. At the top of thederrick the usual crown-block 6 is secured, and a crown wheel or pulley7 is arranged for rotation in the crown-block. In order to brace thestandards against lateral movement in their own plane, extra stay-wires8 are arranged between the standards in the crossed positionindicatechand turnbuckles 9 at the lower ends of said staywires serve tovary the tension of the wires at will. By this means Whenever thederrick has acquired a slight lateral slant in the plane of thestandards increase in the tension of one of the extra stay-wires anddecrease in the tension of the other will restore the derrick to itsnormal position.

In suitable uprights upon the base of the derrick between the rearoblique braces the bull-wheel 9 is journaled in the usual manner. Infront of the derrick a series of mud-sills 10 support frameworks 11 and12 of similar structure, upon which are mounted bearingblocks 13 for theshaft of the band-wheel 14. The frameworks l1 and 12 are used in lieu ofthe heavy timbers formerly used in well-drilling rigs for that purpose,and consist of upper and lower horizontal members supported upon crossedobliquely-arranged members, as shown. A tug wheel or pulley 15 is boltedor otherwise fastened to one face of the bandwheel, so as to rotatetherewith and impart movement to the rope by means of which thebull-wheel is operated. The sandreel shaft 16 has one end journaled in apost 17, mounted upon a timber carried by two of the mud-sills, and hasthe gudgeon at the other end journaled in a box 18, provided at top andbottom with vertically-disposed studs 19 and 20, which tu rn in bearingsprovided therefor in a frame 21, arranged for sliding movement in theframework 11. The sand-reel shaft 16 is arranged in front of the bandwheel, as shown, and a brake-wheel 22 is rigidly mounted upon the shaft16 is such position that the sliding movement of the frame 21 will bringthe brakewheel into contact with the band-wheel or into contact With abrake-block arranged in front of the brake-wheel. The sand-reel 23 isalso rigidly mounted on the shaft and is caused to rotate when thebrake-wheel is brought into contact with the band-wheel, as abovestated. The means employed for imparting sliding movement to the frame21 in order to bring the brake-wheel into contact with the bandwheel orinto contact with the brake-shoe consists of a reach 24, extending fromthe frame 21 to a platform provided on the base of the derrick and alever 25, pivotally mounted on the base of the derrick and suitablyconnected with the end of the reach 24.

By mounting the gudgeon at the end of the shaft 16 in the box 18,provided with the vertically-arranged studs 19 and 20, the slidingmovement of the frame 21 in order to bring the brake-wheel into contactwith the bandwheel or the brake-block is permitted without interferingwith the rotation of the shaft 16, as the box 18 will turn as the frame21 is moved forward or backward, and so keep the gudgeon of the shaft 16properly alined in the box.

At oneend of the band-wheel shaft a crank 26 is rigidly mounted, and apitman 27, operated by said crank, imparts rocking movement to awalking-beam 28, pivotally mounted in the usual manner at the top of theSampson post 29. The walking-beam 28 is preferably of the formillustrated, consisting of a longitudinal timber 31, mounted on a block32, a braced upright 33 on top of the longitudinal member at the middlepoint, and a plurality of truss-rods 34:, arranged above and below thetimber 31 and just below the block 32 and above the upright 33.

Movement is imparted to the band-wheel by means of a belt 35, travelingover the bandwheel and also over an engine wheel 36, mounted in suitablebearings at the front of the mechanism above one of the mud-sills 10. Inorder to keep the belt under proper tension, we provide abelt-tightener, comprising a pivoted frame 37, a tightening-roller 38,journaled in the frame and resting upon the upper lead of the belt, anda turnbuckle connecting the free end of the frame 37 with one of thetimbers connecting the frameworks 11 and 12. The turnbuckle forms meanswhereby the pressure of the belt-tightening roller upon the upper leadof the belt may be varied at will and the friction of the belt upon theenginewheel and band-wheel increases or decreases as required.

It will be noted that under this invention the supporting means for theband-wheel that receives motion from the source of power and thetug-wheel from which motion is transmitted to the bull-wheels is locatedin front of the derrick floor or platform, which is consequentlyunobstructed by these members. The power-belt likewise extends from thefront of the derrick to the motor, which latter is not shown, and thebelt-tightener occupies a position where it is readily accessible andwhere it may be made thoroughly effective. The brake-wheel orfriction-wheel of the sand-reel is disposed between the upper and lowerleads of the power-belt, and therefore out of the way, while the meansfor settinglthe said brake or friction wheel are extendedto the derrickfloor or platform Within convenient reach of the operator.

The operation of the well-drilling mechan ism, as above described, issimilar in general features to the operation of rigs of similarcharacter and no detailed description thereof appears to be necessary,as the operation may be understood by any one skilled in the art fromthe foregoing description and the accompanying drawings.

In the construction of the well-drilling mechanism wood is commonly usedinmaking most of the parts thereof, as illustrated; but it is to beunderstood that the timbers employed may be replaced by iron beams ofsuitable cross-section, if preferred. The tierods and brace-wires mustof course be made of metal in all cases, and the grooved tug wheel orpulley should always .be .made of metal.

While we have described the preferred form of embodiment of ourinvention, it is to be understood that various changes in the form,proportions, and exact mode of assemblage of the elements exhibited maybe. resorted to without departing from the spirit of the invention orsacrificing the advantage thereof. We therefore do not limit our selvesto the exact details of construction shown and described, but reservethe right to make changes therein within the scope of the appendedclaim.

Having thus described the construction and advantages of our invention,what we claim as new, and desire to secure by Letters Patent, is

In a device of the class described, a driven shaft carrying a band-wheeland a tug-wheel, said shaft having a crank, a walking-beam, a pitmanconnecting said Walking-beam with the crank, a sand-reel-carrying shaft,a permanent support for one end of said shaft, a box forming a bearingfor the other end IIO of said shaft, said box having upward and Intestimony that we claim the foregoing as downward extending trunnions, alongitudiour own we have hereto aflixed our signatures I nally-slidableframe having bearings for said in the presence of two witnesses.

trunnions, a friction-wheel upon the sand- JACOB C. KNUPP.

5 reel shaft adapted to engage the band-wheel, 7 JAMES G. GREENE.

a brake-block adapted to engage said friction- Witnesses: wheel, andmeans for manipulating the slid- EDWARD E. HERTZEL,

able frame. I i D. U. ARIUS.

